MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for exploiting PDF viewers. It also contains numerous links pointing to compromised WordPress uploads and other disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://wastran.ru/uplcv?utm_term=have+different+notification+sounds+android PDF link annotation
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1613657eef3388---toxale.pdfIn PDF document text
- https://minervatech.work/js/ckfinder/userfiles/files/rulezuwudajitawi.pdfIn PDF document text
- http://rspon.pl/images/wyswig_images/file/12499650757.pdfIn PDF document text
- https://taxfirma.com/userfiles/file/mifowemekas.pdfIn PDF document text
- http://tiszaladany.hu/upload/file/83070010645.pdfIn PDF document text
- http://xn--h1acbpobggs.xn--p1ai/data/files/melexekipulofedila.pdfIn PDF document text
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16144765ef25cd---48804961732.pdfIn PDF document text
- http://kyochonbuenapark.iorderfoods.com/uploads/files/leteriretuwi.pdfIn PDF document text
- https://anup.bo/images/files/21057317877.pdfIn PDF document text
- http://portalcom-b2b.es/img/user//file/_0708379001631972580.pdfIn PDF document text
- http://terrietanaka.com/library/files/banux.pdfIn PDF document text
- http://www.tahi.hu/ckfinder/userfiles/files/mewiv.pdfIn PDF document text
- http://hyswimpool.com/userfiles/vufigexodetenotidixe.pdfIn PDF document text
- http://hotelbellevuepalermo.com/userfiles/files/43634853028.pdfIn PDF document text
- http://dobryremont.pl/ebobas/portal/app/webroot/img/tmp/file/16310735945487.pdfIn PDF document text
- https://dptech.vn/uploads/files/30745725529.pdfIn PDF document text
- http://nensi.si/upload/file/pazilefirowojiboka.pdfIn PDF document text
- http://budohurtsa.pl/userfiles/file/kuxamiroge.pdfIn PDF document text
- http://lechioutdoor.com/userfiles/file/paratuzaju.pdfIn PDF document text
- http://pumarecovery.com/userfiles/files/wuponedaro.pdfIn PDF document text
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16132c7bb5a5cf---41868486412.pdfIn PDF document text
- http://eternaseguros.net/files/files/1298431109.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d56c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD56C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ed83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED83 | 10580 bytes |
SHA-256: e23cc98a67a5697582e8d0149058b40888d75067ed1722738b259728e43e29dc |
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font_02_sfnt_off000105bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105BF | 19652 bytes |
SHA-256: 9f659e5727b82aa3857bef0597f151d083f8d5c78b109150c0bce183c71c4f5f |
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